marshall



0. SMITH & 1. c. BSHALL.

Revolving Fire-Arm.

Patented May 4,1875.

\ms uimw;

NE GRAPHIC C0.PHOTO -LITH.39&4\ PARK PLACLN-Y.

DEXTER SMITH AND JOSEPH G. MARSHALL, OF SPRINGFIELD, MASS.

IMPROVEMENT lil REVOLVIEKG FlRE-ARMS.

Specification forming part of March To all whom it may concern: I

Be it known that we, DEXTER Snrrn and JOSEPH O. MARSHALL, ofSpringfield, in the State of Massachusetts, have invented a new anduseful Improvement in Revolving Fire- Arms; and we do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings making a part of thisspecitication and description.

The object of our invention is to push out the empty cartridge-shellsfrom each chamber of the cylinder after they have been discharged, andto rotate the latter to bring each chamber into position for thatpurpose, and to this end our invention consists of an extractor-rod,which operates in front of the cylinder to pass through each chamber ofthe cylinder to push out the shell, and which rod actnates a pivoted armcarrying a pawl, which engages with a ratchet on the front of thecylinder or its bearin g, so as to rotate the cylinder and bring eachchamber in succession into a position for the rod to enter it to pushout the shell.

Figure I is a side view of so much of a revolving fire-arm as isnecessary to show our invention as applied thereto with the bolt orslide removed. Fig. 11 is a side view of the socket in which theextractor-rod moves; and Fig. III is a longitudinal section, showing theextractor-rod and the slot made therein, in which the projection on thepivoted arm moves to operate the pawl in rotating the cylinder.

1n the drawings, A represents the barrel of a revolving fire-arm; O, thechambered cylinder, and D the lock-frame, in which the rear projectionto of the cylinder has its bearing to rotate, and upon the end of whichprojection is a ratchet, by which to rotate the cylinder by themovements of the hammer. The front projection c of the cylinder has abearing in the barrel, and upon the end of the front projection is aratchet, b. An arm, F, is pivoted to the barrel at g, to which arm ispivoted the pawl or dog f, having a hooked end, which is held in contactwith the ratchet b by a spring, h, secured to the pivoted arm. A socket,U, is made upon the side of the barrel A, in which slides freely theextractor-rod E, the rear end 6 of which is made conical, and whichLetters Patent No. E6S2,63, datcd May 4, 1875; application filed isprovided with a longitudinal slot, 8, the rear end of which slot isinclined for a little distance, as shown at s, the knob at beinginserted through the slot n of the socket O, and attached to theejector-rod E. arm F is provided with a projection, 'i, which, when theparts are together, protrudes into the slot s of the ejector-rod. Therecoil-plate is recessed at 6, so that the cartridges may be insertedinto the chambers of the cylinder from the rear, and may be pushed outin that direction by the extractor-rod operating in front of thecylinder.

The operation of my invention is as follows: All the parts being inplace, after the cartrid ges have been discharged, the projection t isin the extreme rear, end of the slot .9, which, when the rod is inplace, is the most elevated of the inclined part shown at s, which, ofcourse, holds the pivoted bar F and the pawl in their most elevatedposition; but as soon as the ejector-rod E is started in a rearwarddirection the inclined part 8 of the slot 8 draws the projection 2', barF, and pawl f downward suddenly, and the pawl being engaged with theratchet b on the front end of the bearing 0, the cylinder is quicklyrotated. The rod moving to the rear, its small extreme end enters thefirst chamber which comes into line, and prevents the chamber frompassing by the rod, and the conical end of the latter guides the rodinto the chamber, the projection 6 having passed into the straightportion of the slot 8, so that the rod is moved through the chamber ithas entered, and the shell is forced out at the rear. As the rod ismoved forward by its knob m, (the latter and the slot 01. causing therod to move always in a longitudinal direction without turning,) as itsrear conical end moves out of that chamber, the projection i moves intothe inclined part 8 of the slot 8, and the bar F and pawl f are raisedto engage with the next ratchet-tooth b, and as the rod is again startedthe inclined part 8 of the slot in the rod again draws the pawl f down,causing a further rotation of the cylinder, and the extreme end of theconical part of the rod enters the next chamber, to prevent its passingthe rod too far, and the rod enters that chamber to push out the shell,and so on, each movement of the rod to the rear The pivoted bringingeach chamber in succession in line with the rod, and pushing out theshell therein until all the shells are ejected; and this may be done asrapidly as is desired without touehing any other part of the mechanismof the arm.

Of course, in practice, the socket C may be made solid with the arm, orin one piece with the barrel; and instead of the slot 8 in theextractor-rod and the straight pivoted arm, the latter may be made inthe form shown at D, pivoted at g, with shoulders at t and t, with aprojection on the rod to strike against the shoulder 15 as the rod ismoved forward, which movement would raise the pawl, and. as the rod ismoved back the projection on the rod strikes the shoulder t, which drawsdown the pawl and rotates the cylinder, as before.

It is evident that if it should be desired to rotate the cylinder forany purpose other than to eject the shells, it may be done by onlymoving the extractor-rod a short distance to the rear, and without itsentering the chamber of the cylinder even sufficiently to interfere withany loaded cartridge which might be in the chamber.

We are aware that a cylinder has heretofore been rotated for the purposeof firing the eartridges in the chambers in succession or otherwise bymeans of a ratchet made on the front part of the cylinder and we do notclaim the same, nor any part thereof, as said rotation was accomplishedby a lever extending so far to the rear as to be operated by the samehand which held the arm in discharging it, and the mechanism was notconnected with the extractor-rod in any manner.

Having thus described our invention, what we claim as new is 1. In arevolving fire-arm, an extractor-rod located in front of the chamberedcylinder, and operating to eject the empty shells from the rear of thechambers, and to rotate the cylinder to bring the chambers into positionfor that purpose. 2. A revolving fire-arm in which the chamberedcylinder may be rotated by the operation of the extractor-rod located infront of the cylinder.

DEXTER SMITH. v JOSEPH O. MARSHALL.

NVitnesses:

T. A. CURTIS, U. E. BUOKLAND.

